Review on 🔧 High-performance PANGOLIN 270 Piece O-Ring Assortment Kit for A/C Automotive, Mechanic, and Home Repairs - Professional Grade Rubber O-Rings - Grommets included - Heavy Duty Tools - 18 Sizes/Case by Tony Stennis

This kit offers a wide range of o-ring sizes. Made from more environmentally friendly HNBR material. I have found that they can stretch but not fully return to their original size and shape. They seem a little more fragile than other o-rings I've installed in the past. However, if they are stretched a little, they will return to their size. Therefore, when installing, be careful not to stretch them as much as possible. Hopefully they last a long time and can be used in as many different applications as the marketing suggests. I will give them an initial 4 star rating. I hope that the useful life will keep or increase the rating.