The brand is unknown, but I purchased it at a Montbell shop. It has only been used once, so there are slight scratches on the bottom, but otherwise it's like new. You can put your whole body on the two plates, the seat and footrest, allowing adults to slide comfortably. Length 84.5 cm, width 51 cm, height 10 cm, weight 0.9 kilograms. It's a size and strength that adults can fully enjoy.