This product is made of high-quality steel Seiko, can be used for wood and PVC pipes, etc., mainly used for home improvement downlights, spotlights, but not for the open sheet metal and stone, Rust oil to avoid natural oxidation, can improve its service life
Specifications: 19mm, 22mm, 25mm, 32mm, 37.5mm, 43mm, 52mm, 84mm