This BlueWater 7mm accessory cord has a nylon sheath with nylon core for a multitude of applications limited only by the imagination. And it's 30 ft.
Maxim 8mm Accessory Cord - Package of 30 Feet
Scary Anchors, and How to Avoid Them
PMI Accessory Cord - 8 mm
PerkHomy 90 ft 1/4 inch (7mm) Nylon Poly Rope Flag Pole Polypropylene Clothes Line Camping Utility Good for Tie Pull Swing Climb Knot (Gray (Green&White), 90ft (27.5M))
BlueWater PreCut Accessory Cord 7mm x 30' - Red Pattern : Climbing Utility Cord : Sports & Outdoors
Pre cut lengths of premium accessory cord from New England. Great for all outdoor situations from rafting to backpacking. Assorted colors.
New England Ropes Cut Cord, 8 mm x 30
Prusik / Accessory Cord – T'NT Work & Rescue
C.A.M.P. Nano 22 Rack Pack
Bluewater Accessory Cord - 7 mm x 30' (Blue) : Climbing Utility Cord : Sports & Outdoors
3MM (1/8) Accessory Cord — Adventure Experiences: A Full Service Challenge Course Company
Maxim 7mm Accessory Cord - Package of 30 Feet
BlueWater Accessory Cord - 7 mm x 20' (Color: Blue) : Climbing Utility Cord : Sports & Outdoors