Silicone Light Bulb Covers. Fits 1156 and 1157 Bulb Size. Large - Approximately 31mm tall, widest width ~27mm, base width ~19mm. Changes color of clear bulbs to Green, Red. Blue or Purple. Slips over clear bulbs, will not burn like Plastic Covers. Not all colors are legal for street use. Show use only. Can also fit on 1176 and 1154 bulbs. Sold in a pair.