Carl's Place Foam Insert Kit protect your C-Series DIY or Pro Simulator Enclosure Kit frames from errant shots. The foam inserts are the perfect length and profile for your 'Enclosure Size' and are inserted behind the screen flaps to give you extra peach of mind while hitting balls. This product is an accessory for the Carl's Place C-Series DIY Simulator Enclosure Kit or the C-Series Pro Simulator Enclosure Kit. When purchasing this product, ensure that the size you select matches the size of your DIY or Pro Simulator Enclosure. What's Included Size specific foam inserts to match the 'Enclosure Size' of your C-Series DIY or Pro Simulator Enclosure.