EN131 compliant and DGUV tested, with 150kg capacity.Steps glide across floors, but stay firmly in place with body weight applied.Sprung castors are enclosed by steel domed feet, fitted with solid moulded protection rings that grip the floor when used.Injection-moulded all weather slip resistant treads, or steel mesh treads.Epoxy powder coated in a choice of four colours.Tread size: 400 x 200mm.Platform size: 400 x 300mm, 450 x 300mm (5 tread) .UK made.3 year guarantee.NB: Due to the large footprint of these steps, delivery to some postcodes may incur extra charges.