Colours Dual Density 5 inches Purple Realistic Dildo by NS Novelties. Colours Dual Density is two layers of dreamy pleasures. Firm on the inside, soft on the outside. Strong suction cup, platinum grade silicone and suitable for all lubricants. Just like real, but better. Product dimensions 7.2 inches by 2.44 inches by 2.44 inches. Color Purple.