Some parts need better materials
"Purchased my 1st mammoth mount and it lasted 2 years at a professional driving job. Installing and removing it at least twice a day sometimes more. The teeth broke off on the adjustment arm. Got a new one, it didn't even last 6 months. The teeth on the cog under the suction cup basically disintegrated. The next 2 have had the same issue. PLEASE UPGRADE THE MATERIAL USED IN THAT PIECE. Better plastic or metal. Great product when it doesn't self destruct."