... , XL color: red, yellow. green, blue battery: 2pcs CR2016 battery LED light up pet colarColor: red, yellow, green, blueFunction: quick blink ... -63cmThe size XS don't have black border:The size of S, M, L, XL has black border:Production lead time ... working daysPayment terms: Western union, money gram, T/T, paypal 2012 new reflective waterproof LED pet collar