Altitude Drifter Bamboo Bottle Opener Coastermade from sustainable bamboo, this 2 in1 item serves as a bottle opener as well as a drinks coaster. Laser engraving branding has an attractive yet subtle tone on tone effect. 10 ( l ) x 10 ( w ) x 1 ( h ) cm bamboo & steel bulk packed as bamboo is a natural material, there will be variation in the appearance in one product compared with the next or within similar items in a set.