Mark O2 - BlackMark is an average sized, harness compatible dildo made of Ultra Premium 100 percent silicone Dual Density O2 material and body he feel real. Mark features a super soft outer layer of silicone and a dense inner layer specifically designed to deliver maximum satisfaction through a realistically familiar feel. Tantus had created thicker base for added stability when used with a harness with lifelike veins on the shaft for extra pleasure. It has a slight