diff --git a/frontend/components/product/ProductHero.vue b/frontend/components/product/ProductHero.vue
index e186b38..13d5549 100644
--- a/frontend/components/product/ProductHero.vue
+++ b/frontend/components/product/ProductHero.vue
@@ -4,6 +4,7 @@
 
 import useGetProduct from "~/composables/api/product/useGetProduct";
 import { sanitize } from "isomorphic-dompurify";
+import type { ProductVariantProvideType } from "~/pages/product/[id].vue";
 
 // state
 
@@ -12,47 +13,69 @@ const id = route.params.id as string | undefined;
 
 const { data: product } = useGetProduct(id);
 
-const quantity = ref(1);
+const selectedVariantId = ref(product.value!.variants[0].id);
+const selectedQuantity = ref(1);
+const selectedSlide = ref(product.value!.variants[0].images[0].id);
 
-const selectedSlide = ref(0);
+// provide / inject
+
+const { selectedVariant, changeSelectedVariant } = inject("productVariant") as ProductVariantProvideType;
 
 // computed
 
-const slides = computed(() => {
-    return [
-        {
-            id: 0,
-            picture: product.value!.image1
-        },
-        {
-            id: 1,
-            picture: product.value?.image2 ?? product.value!.image1
-        },
-        {
-            id: 2,
-            picture: product.value!.image3 ?? product.value!.image1
-        }
-    ];
-});
-
 const sanitizedProductDescription = computed(() => {
     return sanitize(product.value!.description);
 });
 
+// watch
+
+watch(() => selectedVariantId.value, (newId) => {
+    const newVariant = product.value!.variants.find(variant => variant.id === newId)!;
+    changeSelectedVariant(newVariant);
+}, {
+    immediate: true
+});
+
+watch(() => selectedVariant.value, (newValue) => {
+    selectedQuantity.value = 1;
+    selectedSlide.value = newValue.images[0].id;
+});
+
 </script>
 
 <template>
-    <div class="flex gap-12 container pt-[5rem]">
+    <div class="flex gap-16 container pt-[5rem] pb-28">
         <Slider
             class="flex-1"
             v-model:selectedSlide="selectedSlide"
-            :slides="slides"
+            :slides="selectedVariant.images"
         />
         <div class="flex-1 flex flex-col gap-3 mt-12">
             <span class="typo-label-sm"> سامسونگ </span>
             <h1 class="typo-h-2"> {{ product!.name }} </h1>
-            <div class="flex w-full items-center justify-between">
-                <span class="typo-p-2xl"> {{ product!.price }} </span>
+            <div class="flex w-full items-center justify-between h-[85px]">
+                <div class="flex items-end gap-4">
+                    <div class="flex flex-col gap-2">
+                        <span
+                            v-if="selectedVariant.discount > 0"
+                            class="typo-p-lg relative flex-center w-fit"
+                            :class="'after:w-full after:h-[2px] after:bg-black after:absolute'"
+                        >
+                            {{ selectedVariant.price }}
+                        </span>
+                        <span
+                            class="typo-p-2xl relative flex-center w-fit font-medium"
+                        >
+                            {{ selectedVariant.discount > 0 ? selectedVariant.price : selectedVariant.price }}
+                        </span>
+                    </div>
+                    <div v-if="selectedVariant.discount > 0"
+                         class="text-white bg-blue-500 mb-1 px-4 py-2 text-xs rounded-full flex items-center gap-1">
+                        <Icon name="material-symbols:percent" class="size-4" />
+                        {{ selectedVariant.discount }}
+                        درصد تخفیف
+                    </div>
+                </div>
                 <Rating />
             </div>
 
@@ -61,11 +84,21 @@ const sanitizedProductDescription = computed(() => {
                 v-html="sanitizedProductDescription"
             />
 
-            <div class="w-full flex flex-col gap-6 mt-4">
+            <div class="flex items-center gap-6 flex-wrap">
+                <ProductVariant
+                    @click="variant.in_stock > 0 ? selectedVariantId = variant.id : undefined"
+                    v-for="variant in product!.variants"
+                    :key="variant.id"
+                    :variantDetail="variant"
+                    :isSelected="selectedVariantId === variant.id"
+                />
+            </div>
+
+            <div class="w-full flex flex-col gap-6 mt-10">
 
                 <RemainQuantity
-                    :maxQuantity="product!.in_stock"
-                    :quantity="quantity"
+                    :maxQuantity="selectedVariant.in_stock"
+                    :quantity="selectedQuantity"
                 />
 
                 <div class="w-full flex gap-3 flex-col">
@@ -74,8 +107,8 @@ const sanitizedProductDescription = computed(() => {
                             افزودن به سبد خرید
                         </Button>
                         <QuantityCounter
-                            v-model="quantity"
-                            :max="product!.in_stock"
+                            v-model="selectedQuantity"
+                            :max="selectedVariant.in_stock"
                         />
                     </div>
                     <Button class="w-full rounded-full" variant="outlined">