Smooth Transition: Works best for floors with 1-5cm/0.4"-1.97" height differences,for use on doorways,room entrances,or other places where two uneven floor surfaces meet. Design: This floor strip adopts a non-slip design, which is convenient for pedestrians or wheelchairs to pass without falling; it enhances safety and reduces the risk of slips and falls. Aluminum Construction: Made of aerospace engineered alloy with anodized finish is easy to clean.It is lightweight without losing strength,withstanding high foot traffic areas of the home. Easy installation: just use the adhesive (not included) to fix it to the sub-floor,no screws are required to tighten.Can be cut to desired length with a hacksaw. Multi-function: Suitable for threshold transition between carpet and floor tile,floor to carpet,wood to linoleum,carpet to floor and border decoration.