This item comes with a thick black bag and each puck is individually wrapped in a separate plastic bag. I am only doing a tire swap so I only need 2 pucks at a time. So I kept the other 2 two pucks unused in the bag and box. The pucks feel heavy and solid. I really like the black rubber washer! You can buy them separate at the hardware store for about a dollar each, but why bother when this set comes with it. The other pucks for sell on Amazon did not offer the rubber washer so this set gives you more value (washer bag). The Tesla Model 3 is heavy so the rubber washer is nice to have. I think the red o-rings are a bit bigger then needed so you have to twist the pucks with some effort to get them in. But once they are in, they stay in. There is an exact 4-inch gap from the ground to the puck. So it is best to have a 3 ton low profile jack to lift the M3. You could save money and buy a less sturdy 2.5 ton (5000 lbs) jack. But the cheaper jacks normally have a minimum lift height of about 4.5 inches. I saw a HUSKY Brand 2.5 Ton Low Profile Floor Jack (Model # HD7024A) at Home Depot for $57 bucks with a minimum life height of 3.375 inches. So this Husky jack will get the job done if you are on a budget. The M3 Long range’s curb weight is 4250 lbs, so a 2.5 ton will do. But you are risking your life and car to save a few bucks. Buy a 3 ton low profile ($120-150) so you can also lift a Model X at 5741 lbs! Some YouTube post says to remove the rubber pad on the jack so the puck can sit inside the mount, basically giving it a perimeter so it won’t slide. I do not recommend doing this! When you remove the rubber pad, you are making a metal on metal contact and will introduce more slip plus scratch the puck and jack. Keep the rubber pad on so there is a metal (the puck) to rubber pad contact making it much more stable. See my pic. After using these pucks, I found some wear/tear on the red o-rings, but that is expected. No damage on the metal so I am very happy with this product. I wish I would have performed the tire rotation sooner. The two rear tires wear out much faster then the front, but I found that they wear out evenly. I discovered greater uneven wear on the inner tread (side closest to motor) on the two front tires. If anyone knows if this uneven wearing on the front tires of Model 3 is normal, please let me know. Not sure if it is an alignment issue…Thanks!