Please be sure to check the following. Please check my reviews for my assessment of the hurdles. We will sell a set of 4 for 19,480 yen, so please comment. Please be sure to comment with your desired size after purchase. If you wish to purchase the junior high school boys' size, please purchase this item. After purchase, please comment that you wish to have the junior high school boys' size for confirmation. The general high school boys' (106.7cm) size is on sale for 22,300 yen. Unlike other products, we use sturdy 16mm pipes. These homemade hurdles are approximately 80 cm wide and fit easily in the trunk of a compact car. And above all, they are light because they are made of PVC pipes. Each hurdle weighs approximately 1.2 kg (medium women's size), so even women can lift them easily. As shown in the photo, they have lids, so you can use them with peace of mind. The top is also made of sponge, so it doesn't hurt at all if you hit it. The hurdles are designed to fall over if your feet hit them, so you can practice without worrying. The legs have also been painted for the children. Although it is not recommended because it significantly reduces strength and becomes unstable, it can also be used as a flexible hurdle by modifying the sponge part. We will also include short pipes (10 cm x 2) for flexible hurdles. The bar part is wrapped with vinyl tape on the sponge. We do not recommend flexible hurdles made of PVC pipes. This is because they effectively become 3-sided hurdles, and in our experience, they are significantly weaker and less stable than 4-sided hurdles. Not for official use, for practice only. No individual sales. If there is no stock, it may take about 1 week for shipping. As these are completely handmade by me, there may be unevenness in paint, tape, and height (about 1 cm). Please understand. As they are made of PVC, the paint may peel easily, so please be careful. Height is not adjustable. We cannot guarantee against injuries. Please use at your own risk. The color of the blue bar may vary. An instruction manual is included, and assembly is very easy even for women. Rubber sheets are also included as shown in the photo to prevent injury during assembly and to ensure safety.