Product review (5 stars): No longer vibrating across the floor!!!
For about 2 years, our front-loading washer (holds about 15 pairs of adult jeans) has been trying to escape the basement- vibrating across the floor with every spin cycle.

My husband, a fix-everything person, was no longer able to 'fix' it by leveling it off. I called the washer repair company. He came out and spent an hour diagnosing the issue. He noted the washer is in perfect shape, but there is an issue with the grade of the floor, combined with the tiles used. Then Mr. Repairman recommended these.

The day we received these, my husband put them on the front feet the washer (the floor grading forces the washer to lean forward). We have done about 15 full loads of laundry and the washer hasn't moved all. There are four in the box, but we only used two.

Excellent product!