If you like pushing around the skin on a wrinkly dog, you will love touching the Tenga Iroha vibrators. They...
dual-density
Some silicone toys are made with two densities of silicone, resulting in toys with a squishy outer layer over a firmer core. Tantus and Vixen Creations are the main purveyors of dual-density silicone with their O2 and VixSkin lines, but other companies have created their own lines also.
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