Abstract: A cat claw trimming and exercise device is disclosed herein, the device permitting a cat to physically exercise both its legs and trim its claws simultaneously. The cat claw trimming and exercise device comprises a vertical post, a flat base, and a sandpaper cartridge. The flat base has a textured surface permitting a cat to stabilize themselves using their back legs while using the device. The sandpaper cartridge is removably installable and has a cardboard tube with a hollow inner volume and a surface coating. Further, a kit is disclosed comprising: a replaceable sandpaper cartridge, a user instruction manual, and a cat claw trimming and exercise device. A method of use is also disclosed for using the present invention.