Thank you for viewing! This work is a fully waterproof firecracker case, made as a single unit. It has no wasted space 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 it's completely 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 while stream fishing, mountain climbing, gathering wild plants, harvesting bamboo shoots, 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 websites. Regarding materials: The main body uses Karelian burl. A burl is formed when the trunk swells during the tree's growth process. The trees that produce burls are few, and only a small part of the tree can be harvested, making it a very rare and valuable wood. It is generally very water-resistant. 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 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 bonding. Details: Body material: Karelian burl 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 body diameter and overall length are listed in the tag. The overall length does not include the ring. As this is a handmade product, 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. Karelian burl, stream fishing, wild plant gathering, bear repellent goods, bear deterrent, bear scarer, bear avoidance, bear countermeasures, fine wood, outdoor, mountain climbing, camping