Practically sized, this deluxe dildo plays so sweetly. Mark is the perfect comfortable fit not too big, not too small. Tantus Dual Density O2 line delivers maximum satisfaction and a realistically familiar feel through a Super Soft outside and a hard muscle core, both made of Tantus own unique blend of 100% Ultra-Premium Silicone. Mark is available in three skin tones and features a bulked up base perfect for harness play.