Compatibility: designed for Smart Fortwo seat gaps, fits C451, A450 and C450 models Function: gap filler and organizer that prevents phones, wallets, keys, glasses, cards and other small items from dropping into the seat gap Material and durability: soft, durable EVA foam; waterproof and easy to wipe clean; resistant to cracking or breaking with longterm use Size and fit: compact, snug fit that sits flush with the seat and armrest to maximize protection Armrest protection: provides allaround coverage to reduce scratches and keep the armrest looking Easy installation: flexible, tool fit that slides into place quickly Use scenarios: Daily commute: keep your phone, cards and small essentials within easy reach Long drives: prevent sunglasses, coins, chargers and other items from disappearing into gaps Family trips: store small toys or snacks to avoid items dropping between seats