SZHOWORLD CNC Machined Aluminum EDC Survival Waterproof Pill/Match Case Box Material: 6061 light weight aluminum alloy material Size:Total length of the tool is about 9.3cm the inside diameter is approx 2.5cm Attention:Please allow 1-3mm size difference due to hand measurement. Complimentary accessories : waterproof "O" ring*sewing kit* cotton swabs*file*key ring*parachute cord