Material: Stainless Steel High Tensile Strength There Are Two Specifications Length: S: 62-102cm M: 82-132cm Adjustable Telescopic Rod Manufacturered by BENGKUI. Tie Rods Are Suitable For Solid Wooden Doors Aisles Solid Doors Or Walls Features: With Safety Button Safer Maximum Load 160 Kg. Unlike a door stop your movement is not restricted by the door frame but provides you with a permanent and stable structure