5Pcs Magnetic Bubble Level T Type Levels with Screws Magnetism/Screw Mounted Dual-use Bubble Spirit Levels. Package: 5 Pieces x Bubble Levels (with 10 Pieces Screws). Magnetism/Screw Mounted Dual-use. 1 Level has 2 small mounted holes in the backing plastic shell. Package 5Pcs Level with 10 Pieces Screw inside. With small screws for mounting. Magnetic, has magnetism on backing case, can absorbed onto the iron- or steel-surface to check. Material: Acrylic, and black plastic shell. Color: yellow-green,and black plastic shell. Measurement: 2.26 x 1.63 x 0.54 inch (Height x Width x Depth).