For Hotei bamboo hand materials, etc. Hotei bamboo Oil extracted For fishing rod grips, handles for sorting nets, etc. Good, easy-to-grip knobs are preferred. Around 30cm to 40cm. The photos are examples, and there are individual differences. From fishing beginners to experts, Recommended for handmade fishing tackle and DIY crafts. Carefully packed and shipped. There are still many sizes available. If you need any, please let me know in the comments.