KIT606NC4 - comes with one model 606NC 30" Cat Trap one model 306NC Transfer Cage, one model TD12NC Trap Divider and one model C306 Connection Piece. This kit allows you to connect your transfer cage to the trap. This means you have the option to use the transfer cage as a connected litter cage or gain additional recovery space. Model 606NC is our 30" Neighborhood Cats trap featuring extra large trip pan, extra large handles and hand protector and an easy release door. Model 306NC is a feral cat transfer cage with removable bottom tray, extra large handles and hand protector and is made to line up perfectly with our feral cat traps. Model TD12NC is a heavy duty, powder coated trap divider with attaching clip to lock in place. Model C306 is a connection piece that slides into the sliding door frame of both the trap and cage to instantly gain additional recovery space or a connected litter cage. Free standard shipping in the contiguous USA.