Thank you for viewing! This product is a tool for setting off firecrackers to avoid encounters with wild animals such as bears and wild boars during stream fishing, mountain climbing, wild vegetable gathering, bamboo shoot hunting, camping, and other outdoor activities. This product is an integrated, completely waterproof firecracker case. It has no wasted space and a practical, cool design. The entire product is waterproof, so the firecrackers won't get wet even if submerged in water! ○ About the Materials The material used is Hawaiian Koa. In Hawaii, logging on state-owned land is prohibited, making it extremely difficult and expensive to obtain this wood today. It is a Hawaiian native tree that has been highly valued as a sacred wood by the locals since ancient times. It is a rare species that is rarely found in the market. You can use the firecrackers one by one, accurately directing them in the desired direction. Detailed usage instructions can be found on video-sharing websites. The product is highly water-resistant overall. The barrel is made of stainless steel, so it is rust-resistant. The cross-section was polished with a fine file using a lathe. It is smooth. The main body is coated with a two-part urethane. It has a very strong gloss and is also highly water-resistant. Since two-part urethane is used, you can wipe it clean with chemicals such as alcohol if it gets dirty. Epoxy is used for adhesion. Details Body Material: Hawaiian Koa Barrel: Diameter 16mm, Depth approximately 67mm, all stainless steel pipe Adhesive: Epoxy Firecracker Case: Aluminum (completely waterproof) Ring Part: Iron Coating: Two-part urethane coat The diameter and overall length of the main body are listed on the tag. The overall length does not include the ring. This is a handmade product, so there may be minor scratches, measurement errors, slight deviations in the center of the case, and minor unevenness on the painted surface. Please understand this in advance. Firecrackers are not included, so please prepare your own. Please use at your own risk. If you have any questions, please feel free to contact us in the comments section. Thank you! Hawaiian Koa, Curly Hawaiian Koa, Hawaiian Curly Mango, Ebony, Karelian Birch Burl, Stream Fishing, Wild Vegetable Gathering, Bear Deterrent Goods, Bear Scarer, Bear Deterrent, Bear Scare, Bear Avoidance, Bear Prevention, Bear Measures, Fine Wood, Outdoor, Mountain Climbing, Camping