Adore U who is known for great quality toys at lower prices just released some plug sets. They are made of silky, firm yet flexible 100% silicone. The sturdy bases are safe and secure. 

• Diameter: 1.1", 1.35", 1.56" (2.8, 3.3, 4 cm)
• Total length: 4.25", 4.5", 5" (8.9, 10.8, 12.7 cm)