Flashpoint 24" Triangular Collapsible Disc , White, Black, Grey & silver on the other side for white balanceing These Triangular Reflectors are sturdy and won't flop like many other reflectors The photographer can hold a this Triangular Reflector in one hand and take the picture with the other Two different sides provide different functions:; Black/Grey/White: makes digital photos more color balanced; Silver brightens the picture; 24" in size; Triangular Reflectors can be held in place by using a standard reflector holder or with a super clamp