Olympic Barbell Clamps 1 inch Quick Release Pair of Locking Pro Olympic Weight Bar Plate Locks Collar Clips for Workout Weightlifting Fitness Training

I was worried about these, too, being too big, just like the spring collars that were supposedly for 1'' bars. However, due to the anti-slip padding on the inside, they lock in just fine! Now, I CAN GO UP IN WEIGHT!!! PREPARE FOR A REBIRTH OF VIKING SHIELD MAIDENS, WORLD!!! *bear-like Berserker roar*

Quality was way better than expected. Price is right. They look great on my new barbell.

works well with 1inch barbell

I have a workout at strength training on routing my bodybuilding routine

they are strong and work very well.

Very disappointed. These are TOO BIG for a 1" bar. I already own high quality Lock-Jaw Collars and it was obvious upon inspection when comparing to the Lock-Jaw that these were too large. Even when locked, this slides right off a CAP Barbell standard 1" smooth bar. Absolutely NO friction at all. If the inside rubber pieces were thicker and protruded more then it might work but the rubber pieces are flush with the surrounding collar, thus providing no friction. The product photos depict a thicker rubber insert than what it actually has. When locked, the inner diameter is 28mm instead of 25mm. See attached photo.

All is good other than-the-fact that it's too large for a 1-inch bar. The closed measurement of the bar clamp is 1-1/8 inches. WHAT A WASTE OF TIME.

too big to fit 1 inch bar slides off easily in locked position

It's fits but not as tight as I would like it.