Fat grips, also known as thick grips or fat bar grips, are cylindrical attachments designed to increase the diameter of the handles of barbells, dumbbells, pull-up bars, and other exercise equipment.

Thick grips are made from a dense, durable rubber or silicone.

These grips contribute to bigger and stronger forearms by forcing the muscles in your hands, wrists, and forearms to work harder to maintain a secure grip on the thickened handle.

When you grip a more comprehensive implement, your forearm muscles must contract more intensely to stabilize the weight, leading to increased muscle activation and growth over time.

The increased grip challenge also engages the biceps and triceps to a greater degree, promoting overall arm development.

Fat grips are used by simply wrapping them around the desired equipment handle before performing exercises like curls, rows, presses, and deadlifts.

They typically have a slit that allows them to be easily secured, and their cylindrical shape provides a consistent thickness along the entire length of the grip.