Protects battery and alternator connections from corrosion and shortingProfessional appearance of your wiring.Use with 3/8”, 5/16" or smaller studs to fit over nutUse with wire diameter between 1/5" and 1/2" (10-2AWG), Simply trim material to desired opening size.Includes 5 x red and 5 x black coversGreat for alternator, starter, solenoid, or power junction studsHigh-quality silicone rubber material.Rated temperature: -40C to 105C Product Description Why Silicon? Recoil offers stud terminal covers to protect your battery connections from corrosion and shortening while giving your power terminations a professional, clean appearance. Silicon is certified by ROHS. Silicone terminal covers have high thermal stability from -40 to 230.Silicon covers are soft with good toughness and elasticity to fit different size terminals.Silicone terminal covers have good electrical insulation and excellent water repellency, which is the high reliability for electrical equipment in wet conditions.Silicone covers have much longer service life than PVC ones. Silicone material reaches UL-94V0 flammability rating. 10AWG -2AWG Use with wire diameter between 1/5" and 1/2" (10-2AWG) RED & BLACK COVER The color for these terminal protector covers include red and black, for easily identify positive and negative pole. TOTAL 10 PCS The package will include a total of 10 pieces of covers, 5 in red and 5 in black, can meet a variety of needs. Description 10 Pack Silicone Terminal Covers for Alternator Battery Stud and Power Junction Blocks, Fits 10-2AWG Wire 8 Pack Silicone Terminal Covers for Alternator Battery Stud and Power Junction Blocks, Fits 2AWG to 1/0AWG Wire 6 Pack Silicone Terminal Covers for Alternator Battery Stud and Power Junction Blocks, Fits 1/0AWG to 2/0AWG Wire 4 Pack Silicone Terminal Covers for Alternator Battery Stud and Power Junction Blocks, Fits 3/0AWG to 4/0AWG Wire