100PCS Ring Ground Insulated Wire Connector Electrical Crimp Terminal 12-10AWG Suits cable/ wire sizes:4.0-6.0mm2 You can email to tell us what the size you like ,otherwise we will send it Randomly ! hope for understanding ,thanks! size: 4mm, 5mm , 6mm, please kindly select the size you want ,otherwise we will send it Randomly For best results use a hot air gun until it reduces in size and the adhesive flows