- High Capacity: this hand rolling extension socket was specifically designed for electrical appliances which are up to 6000W. It has an unique and outstanding design. - Shockproof: plastic ABS cover, not broken when falling down . Avoid burning and heatproof: the cover of this hand rolling extension socket was made from amino formaldehyde which can avoid burning in order to protect your devices. The core inside is porcelain and that is a reason why it can use for 3300W electrical appliances. - Long life time switch: the switch of this hand rolling extension socket was made with high quality parts.