Cheap lift supports, don't get these (A-Premium 'brand'):


Too springy in general, too bouncy at the top, both failed within a fraction of a second of each other in a tension reaction at the upper connection (so also probably moderately different gas charges in each). Thankfully a colleague happened to be standing there with quick hands, and I was only lightly bonked by the heavy boot/trunk.

Amazon, entertainingly, wanted the pieces back for the $15 refund.

 

I like the quality of the products from liftsupportsdepot.com. The pair of StrongArm hood lift supports I installed on my wife's 2015 Lexus RX350 back in October is significantly better than the slowly-failing factory lift supports they replaced. They came with a lifetime warranty. Ordered them on amazon.com for about $40 with free shipping....

 

Agree with Jon, The Liftsupportdepots.com seem to be good, after 4 years mine were beginning to get a bit weak(still lifted and held). I called them and after they verified purchase through Amazon, had new replacement after 4 days. Front & Rear required a $10 per pair costs for replacement, no problems. Good people and product.

 

The ones I just bought have ends that are larger than those your pic. These seem to hold up just fine to the stress of the lid flying open.

Details here

New one on top