Rubi wedges for tiling. 5mm (3/16"). Quantity of 500. Ideal for use with wall tiles. Used to space tiles from the worktop on splashback tiling. Prop up wall tiles from the floor from 1mm to 5mm. Put these wedges together to gain extra height when propping up tiles at the base of walls. Rubi tile wedges allow for excellent finishing with total precision due to the homogenity of their measurements and the absence of rough edges and small defects.