Whatâs better than a classic donut tube? Make it a double so you can fit two riders. The OâBrien 2-Daloo does just that and everyone loves it. It doesnât matter whether you choose to sit, kneel or lay down; you and a friend are guaranteed to have a thrilling ride on the 2-Daloo. The O'Brien 2 Daloo Tube is designed for 2-riders. This sit in tube measures 80" x 56" (203.2cm x 142.24cm) and is made from durable 24-gauge PVC with a 420-denier nylon partial cover. The 4-handles with EVA knuckle guards will let you hang on in comfort and hook-ups are fast with the quick connect towing hook. Inflation/Deflation is also easy and quick with the Lighting Valve. Partially covered with 420 Denier Nylon 4 Handles with EVA knuckle guards Lightning Valve | 2 Daloo Towable Tube