The invention is for a tub grip for a bathtub that assists bathers in entering and exiting a bathtub. The tub grip is sturdy and easy to attach and remove for those that may suffer from loss of strength and dexterity due to advanced age, injury, illness, or other medical condition. In addition, the tub grip is constructed to resist wear and tear and provide its users with a substantial service life. One embodiment of the invention comprises a locking member, a first arm assembly, a clamp assembly, a second arm assembly, and, at least one locking plate. The first and the second arm assemblies and the locking plate are mounted on the locking member, whereas the clamp assembly is attached to the locking member. The locking member comprises a plurality of teeth, to which the locking plate is selectively engageable.