Kozmo Ejection Charge Canister Made in Texas! These are machined from 6061-T6 aluminum with a Type II Anodize finish. Each canister is drilled and countersunk for a #8-32 flathead screw. One screw is provided per canister. SOLD INDIVIDUALLY Specifications: 4 Gram Cannister (red) Weight: 7.8 grams Length: 1.125" Outer Diameter: .75" Inner Diameter: .625" Maximum BP Charge Weight: 5.7 grams 6 Gram Canister (red) Weight: 11.0 grams Length: 1.24" Outer Diameter: .875" Inner Diameter: .75" Maximum BP Charge Weight: 8.8 grams 12 Gram Canister (red) Weight: 15.0 grams Length: 1.50" Outer Diameter: 1.0" Inner Diameter: .875" Maximum BP Charge Weight: 15.0 grams 14 Gram Cannister (black) Weight: 15.8 grams Length: .738" Outer Diameter: 1.5" Inner Diameter: 1.375" Maximum BP Charge Weight: 16.1 grams