DOG HORN XL REFILL CANISTERS (2 Count). 1.8 OZ each. Original Equipment Manufacturer. Original Equipment Part. Each refill canister fits the DOG HORN XL Top and optional Belt Clip (attachments not included). Keep your DOG HORN XL ready for service at all times with these OEM replacement refill canisters. Reuse your DOG HORN XL Top & Clip, Save Money and Save the Planet! Just screw the top onto the replacement cainster and use to stop aggressive dogs, scare coyotes, bear, & other wild animals! DOG HORN XL, The Original and most Effective Training Tool & Outdoor Safety Alarm for Hiking, Biking, Camping, Boating, & More! For use with DOG HORN XL Air Horn For Dogs, ASIN: B07LDH4Y35, and ASIN: B0DMTQ461Z. MADE in the USA! DOG HORN and SAFETY-SPORT are a registered trademarks of LPI Consumer Products, Inc. All rights reserved.