FitRing Car Cup Holder Coasters, Multi-Size, 2.75"-3.54", 2 Pack | 5 size choices help select a coaster diameter closer to the diameter of your cup holder base than a fixed-size coaster

FitRing Multi-Size Design Add or remove the outer rings to choose from five coaster diameters between 2.75" and 3.54". Measure the flat bottom of your cup holder before ordering to select the closest size.
More Size Options Than a Fixed-Size Coaster The modular design gives you five diameter options, making it easier to choose a size that better matches the usable bottom of your cup holder.
Designed to Stay in Place The pressure-relief non-slip texture helps reduce sticking, so the coaster is less likely to lift out with wet or wide-bottom cups.
Soft Silicone, Easy to Clean Flexible silicone helps protect the bottom of your cup holder from daily drips and residue, and rinses or wipes clean easily.
Check Your Cup Holder Before Ordering Designed for round, flat-bottom cup holders within the listed diameter range. Tapered, raised-center, or irregular cup holder bases may not fit as expected.