This item is a stair measuring tools kit, made of reliable materials, it is anti-rust and corrosion resistance for . It can help you measure stair treads, risers and shelves. Easy to take and store for repeated times using. Features -Color:Blue -Material:Aluminum alloy, silicone, stainless steel -Size:25.25X5.10X0.15cm/9.92X2.00X0.06in -Size:40.60X2.70X0.30cm/15.96X1.06X0.12in -Size:30.40X2.70X0.30cm/11.95X1.06X0.12in -Size:20.20X2.70X0.30cm/7.94X1.06X0.12in - Durable and practical, this stair measuring gauge tools kit can serve for a long time application to avoid frequent replacement. - This stair stair measuring tool has a very precise scale, which allows you to adjust the scale and measure accurately. - Our stair clamp will help you measure stair treads, risers and shelves, of multiple purposes to fit your needs. - 360° swivel fixture plate for easy measurement of irregular stair treads, easy and portable to take and use. - Made of premium materials and good workmanship, these tools can be used for long time, maintain . Package list: 2 x scale plates 2 x tie rods(16 inches) 2 x tie rods(12 inches) 2 x tie rods(8 inches) 14 x stainless steel screws 12 x knobs