Review on Optimization: SimpleHouseware Cabinet Holder- 6 Strips Spice Gripper Clips, Holds 30 Jars by David Gagnon

This listing previously sold adhesive strips from 3M spice jar holders that claim to hold jars up to 1.75" in diameter. Each holder consisted of two flexible plastic pins that could be held. an object hanging or held between them. These were strips of 5 spice jars. My spice jars are this size (1.75 inch diameter) and the holders don't hold them securely. I'm guessing it will hold 1.5 inch cans. My glasses fit into the pens with some difficulty, but the glasses slide out very easily when pressed or after a few minutes. because the tines stretch too far and there is not enough space between each holder. I either cut them apart and mount each holder separately leaving room for expansion, or I can just use any other prong (3 of 5). But since the prongs don't even offer a secure hold, I'm sending them back.