Adrien Lastic recommends the use of water based lubricants for an easy and smooth insertion of all silicone products. Do not use silicone lubricant, oils or creams with any silicone product as they can degrade the product material, limiting its performance and lifespan. Thoroughly clean the toy before and after each use with warm water and mild soap. Store your Adrien Lastic toy in a dust free place and keep it away from toys of other materials. Avoid leaving it in direct sunlight and never expose it to extreme heat. Designed and developed in Europe. Size 20.1cm by 3.6cm e or approximately 8 inches by 1.42 inches. Vibrator requires 2 AAA batteries, not included.