An ultra-plush inner sleeve, and a unique, malleable outer case has allowed Tenga to create a brand new sensation! Cover the air hole at the top of the item during use, and the Flex's spiral-ribbed casing will wind and unwind, creating a spiralling movement that delivers thrilling "spinning stimulation".

Additionally, the Flex's malleable case allows you to squeeze, twist, and grip the item to directly change the stimulation to suit your desire!

The Rocky Black model contains a sleeve made with a firmer version of Tenga's body safe TPE material, and an intricately moulded texture that offers intense sensation with every stroke.

The Tenga Flex received the Red Dot in the Red Dot Award: Product Design 2018.