Thank you for viewing! This work is a fully waterproof firecracker case, made as a single unit. It has no wasted volume and a practical, cool design. I came up with the idea because I personally felt that "it's a waste of time to take out firecrackers from a separate case when I want to get to the fishing spot quickly." Since the whole thing is waterproof, the firecrackers won't get wet even if they're submerged in water! This is a handmade bear deterrent made using rare, high-quality wood. 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, etc. You can use the firecrackers one by one, accurately in the direction you want to set them off. Detailed usage instructions can be found on video-sharing sites. The whole thing is very water-resistant. The barrel is made of stainless steel, so it's rust-resistant. The cross-section was polished with a fine file using a lathe. It's smooth. The main body is painted with two-part urethane. It has a very strong gloss and is also very 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 the adhesive. Details: Body material: Japanese Zelkova Barrel: Diameter 16mm, depth approximately 67mm, all stainless steel pipe Adhesive: Epoxy Firecracker case: Aluminum (fully waterproof) Ring part: Iron Coating: Two-part urethane coat The diameter and overall length of the body are listed in the tag. The overall length does not include the ring. As this is a handmade item, there may be minor scratches, measurement errors, slight unevenness on the painted surface, etc., but please understand this beforehand. 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 me in the comments section. Thank you. Zelkova, Japanese Zelkova, Keyaki, Karin Burl, Stream Fishing, Wild Vegetable Gathering, Bear Deterrent Goods, Bear Deterrent, Bear Scarer, Bear Avoidance, Bear Prevention, Bear Countermeasures, Fine Wood, Outdoor, Mountain Climbing, Camping