This is a red conch shell bag. The bag is for a conch shell approximately 36cm to 38cm long, including the mouthpiece. The material is nylon, which is light, durable, and won't fade. It has a size adjustment string and a fall prevention string. It can also be processed into a pom-pom style, as shown in the fifth photo. For a pom-pom with a radius of 3 cm, cut the string leaving about 3 cm, and then unravel it with a toothpick or similar tool. I think it's suitable for mountain climbing, so please use it for training. The conch shell in the photo is 36cm. This is a sale of the bag only.