BlinX Purple LED’s. Package includes 4 Chrome plated BlinX with Yellow LED’s, batteries pre-installed and a alcohol cleaning pad for quick & easy installation. BlinX LED’s use 3M VHB (Very High Bond) mounting adhesive to ensure maximum grip under all conditions. We recommend using a minimum of 2 (or more) packages of BlinX. This will give you a total of 8 lights (2 per wheel). BlinX, Own the night!