These extendable telescopic legs attach to the large lightweight drawing board, allowing you to rest the board on your lap, creating a versatile lap easel.Made of steel, they extend to 91cm, can accept any board up to 2cm in thickness, have a carry handle and can be fixed to the board to make it either landscape or portrait.Please Note: The Telescopic Legs for Large Drawing Board are not compatible with the Quarter Imperial Drawing Board which we sell.