Especially created for anal endeavours, the Master Tool Number 1 has a curved end which targets the prostate with ease. The smooth, polished end enables this butt plug to slip into the anus effortlessly with lubricant. The insertable length is 5 inches with a maximum diameter of 1.5 inches. The flared base is simple to keep hold of even with the most vigorous of thrusting. Available in Black. A free sample sachet of lube is also included.