Feature: Earring pins are acrylic and earnut are silicone rubber, which makes it allergy-free, lightweight and durable. Suitable for most people. High in EU and US standard These clear earring designs for kids, adults and even craft makings, They can also use for new jewelry or to replace other earring posts. Specifications: Earring pins and backs color: clear Earring pin acrylic Earring backs silicone rubber Earring pins length: 12 mm Ear cup height: 4 mm Ear cup diameter: 3 mm Quantity: 50 pairs of earring pins and backs Note: Small parts. Not for children under 3 years old. Package includes: 50 x Earring pins 50 x Earnuts