20cm Bed Bridge Mattress Connector to Make Twin Beds into King Wedge Mattress with Mattress Strap for Guest Living Room. Color as shown. Size: 20 x 10 cm. Weight: 680 grams. All-in-One Bridge Double System – Assemble and connect mattresses to create a King size bed when needed with this all-in-one double bed bridge. Width of 20 cm. Join any combination of two beds (Twin, Twin XL, Full, Full XL, Queen size) to form a larger bed. Easy Installation – Place the two mattresses side by side. Position the bed bridge between them to close the gap. Secure the beds together using the connecting strap. Easy and Convenient Storage – Ideal for guest rooms, children's rooms, B&Bs, guest houses, and vacation rentals. Convert between a large bed and separate twin mattresses as needed. Includes a stuff sack for compact storage.