This 4 piece set consists of 1 x 600mm, 1 x 1200mm, 1 x 1800mm and 1 x 724 250mm Cast Boad Level with a carry bag for all levels. The 787 Helius Level is designed with two solid acrylic shockproof vials, one horizontal and the other vertical. The surface of the level is finely milled for better grip and the level incorperates Kapro's wall grip feature allowing you to keep the level against a flat surface with one hand without scratching or damaging the wall. Shock absorbing rubber end caps prevent the level from getting damaged if it is dropped. The 724 Scaffolder Level has two 2 solid acrylic shockproof vials, one horizontal and the other vertical, a cast aliminum body which is a tough but lightweight design.