2.3 Millimeters

Rust-proof, easy-clean finish ensures lasting durability. 【Expandable Length & Adjustable Height】This cabinet organizer shelf is expandable from 12.5″ to 22.5″ in length, with shelf heights adjustable from 4.5″ to 7.3″—perfectly fit any countertop, cabinet, closet, pantry, freezer, under-sink space, and more, instantly doubling your usable storage area.