Available in 5 colour coded sizes to suit all elastics, soft coloured plastic dome connector 

Small, Medium, Large, Extra Large and Mega

Code Colour Diameter (mm) DACR02 Red 4 * 6 DACR03 Light Blue 5 * 7 DACR04 Blue 6 * 8 DACR05 Black 7 * 9 DACR06 Purple 10 * 9