New to anal play and not sure what anal sex toys would be the best to experiment with? The Small Black Classic Butt Plug is ideal for beginners as it measures in at 4.25 inches x 0.8 inches (at its widest point in diameter). It has a soft coating yet is rigid enough for anal thrusting. Its Silagel formula also means that it contains no latex or cadmium and it also has an anti-bacterial and non-toxic formula. One size fits the majority.