Safely dispose of Xacto knife blades, single edge razors, double edge razors, box cutters, utility knife blades, carpet blades. Keep old blades away from harm. Oval cylinder - 31mm x 38mm x 90mm high. Walls are tough and 3mm thick, print in one piece with 30+% infill. Tape over the slot and throw in the trash safely without worrying that someone will cut their fingers on loose blades. Design makes it difficult to shake out blades but it can be done, so tape over the slot before disposal.