We just sold some replacement dayglo collars to a guy who wanted to get rid of the Garmin black nylon as it had begun to look bad. The nice thing about the dayglo is you can wipe them off and not have the smell. However, the tip is "when you replace the DC 30 collar be very careful of the wire that leads from the battery compartment to the antenna pod. When we sell the replacement collar we always tell our customers, you need the kevlar-like sleeve to cover and protect that wire. A two dollar sleeve to protect a $100+ collar. You decide.