Pandahall 200pcs Clear Soft Plastic Earring Back Stopper Earnut Earring Findings, 4x4mm, Hole: 1mm Size: about 4mm long, 4mm wide, hole: 1mm. Material: Plastic; Color: Transparent Usage: Earnuts Clear Soft Plastic Earring Back Stopper Earnut Findings The soft rubber of these hypoallergenic earnuts will cushion the ear.