Konova Update Kit for old version This one is made in Korea by Konova at hight quality This upgradeable options are being designed to work with the existing K3&K5 slider If you already have old version it called that K3080 there`s noting to worry about. Use your slider on uneven ground. Easy to connect with Optional Accessories(Crank Handle Kit & Motorized Kit). Advanced Portable Slider Set up instantly. Will usually ship within 2 business days of receiving cleared payment.