Features [Opening Size] The standard opening size is 25mm, 40mm, 45mm, semicircular 55mm holes, multi-size design, strong versatility to meet most demands [Precise Positioning] With the precision measuring ruler and position sensor, you can position with one click when laying tiles, shorten the time to draw lines and find the position [Flexible]The fixed nut on the positioner is flexible and can be freely adjusted 360 degrees to avoid mistakes and improve work efficiency [Portable]The tile hole positioner is made of high quality stainless steel, durable and rust resistant, lightweight, very portable and easy to fit in the tool bag [Widely Used]This hole search tool is suitable for precise positioning of ceramic, marble, wood and plastic holes, and is suitable for woodworking, construction, DIY and other scenarios Specification: Item Type:Tile Hole FinderModel:None Material: stainless steel. Opening Size 25mm, 40mm, 45mm, 55mm Package list: 1 x ruler, 1 x hole finder Package List 1 x Ruler 1 x Hole Locator