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 was using it myself and 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 when fishing in mountain streams, hiking, 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 sites. Regarding materials: The main body uses Karin (Burmese Rosewood) burl. A burl is formed when the trunk swells during the tree's growth process. Few trees produce burls, and only a small part of those trees 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: Karin burl 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 body diameter and total length are listed in the tag. The total length does not include the ring. As this is a handmade item, 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 me in the comments section. Thank you. Karin burl, mountain stream fishing, wild plant gathering, bear repellent goods, bear deterrent, bear scarer, bear avoidance, bear countermeasures, fine wood, outdoor, hiking, camping