Keeps car cup holders clean from drink spills and coffee rings. Promotional Car Drink Coasters are an affordable way to promote brand or organization, while also providing a useful item for your customers or clients. With bulk ordering options available, they are a cost-effective solution for reaching a large audience. Fits most cup holders. 70mm diam. Finger cutout for easy removal. Available with Ultra Natural Rubber backing with hardtop PVC surface - 2mm thick or with Domed Resin Surface with PVC backing - 3mm thick.