This spiked rolling drum is a sensation toy. On its own – it gives a feeling not unlike a Massage. However – when used on skin that is Tender – the sensation becomes at once more intense! Should you add the Violet Wand – it gives a desireably punishign sensation. It measures 2.8 inches long; the drum itself is 0.9 inches wide – with a 0.5-inch diameter. The handle features a grooved grip – and the drum is formed of no fewer than eighty-four triangle-like Raised Bumps.