Tubers

Tubers predate belay tubes, but function nearly as well. The rope runs smoothly, they dissipate heat, they wear well, they are small, and they don't cost very much. Most of my tubers have external ribs to improve heat transfer to the air without adding excessive weight. Still, these are belay devices, not long drop rappel devices.

I use the following criteria to decide whether to call something a Tuber:

The devices that I placed in this category have one main rope channel that is split into two halves by a rod.
The rod splitting the rope channel also forms an attachment for the keeper.

Although most of my tubers have external ribs, I do not use this as a deciding criteria, so the Simond Cubiks are tubers. The examples that I use for comparison when I consider placing a device into this category are the Latok Tuber and the Lowe Tuber.

ID Device Description Acquired Weight Length Width Height Std. volume

701 Advanced Base Camp Decelerator Forged Al, hard anodized, square, cable keeper Inner Mountain Outfitters, 1996 76 85 49 86 359

840 Koola (Florsheim) Milled Al, hard anodized, round, pivoting rod keeper Florsheim Consultants, 2006 85 74 57 96 405

787 Koola (Megagrip) Milled Al, unfinished, round, pivoting rod keeper Ian MacNab, 2003 76 68 55 108 407

612 Latok Tuber Milled & forged Al, unfinished round, cable keeper L.L. Bean, 1987 53 78 49 72 276

664 Lowe Tuber Milled & forged Al, soft anodized, round, cord keeper Ragged Mountain Equipment, 1994 49 50 50 38 94

613 Lowe Tuber II Milled & forged Al, soft anodized, round, cord keeper Ragged Mountain Equipment, 1994 61 55 55 38 112

724 Simond Cubik, Version A Forged Al, unfinished, V grooves, cable keeper Climb Max, 1999 72 60 50 117 350

853 Simond Cubik, Version B Forged Al, painted, V grooves, cable keeper Barrabés.com, 2007 73 60 50 108 322

673 Trango Pyramid Milled & forged Al, hard anodized, square, cable keeper Exkursion, 1994 66 84 51 92 393

ID	Device	Description	Acquired	Weight	Length	Width	Height	Std. volume
701	Advanced Base Camp Decelerator	Forged Al, hard anodized, square, cable keeper	Inner Mountain Outfitters, 1996	76	85	49	86	359
840	Koola (Florsheim)	Milled Al, hard anodized, round, pivoting rod keeper	Florsheim Consultants, 2006	85	74	57	96	405
787	Koola (Megagrip)	Milled Al, unfinished, round, pivoting rod keeper	Ian MacNab, 2003	76	68	55	108	407
612	Latok Tuber	Milled & forged Al, unfinished round, cable keeper	L.L. Bean, 1987	53	78	49	72	276
664	Lowe Tuber	Milled & forged Al, soft anodized, round, cord keeper	Ragged Mountain Equipment, 1994	49	50	50	38	94
613	Lowe Tuber II	Milled & forged Al, soft anodized, round, cord keeper	Ragged Mountain Equipment, 1994	61	55	55	38	112
724	Simond Cubik, Version A	Forged Al, unfinished, V grooves, cable keeper	Climb Max, 1999	72	60	50	117	350
853	Simond Cubik, Version B	Forged Al, painted, V grooves, cable keeper	Barrabés.com, 2007	73	60	50	108	322
673	Trango Pyramid	Milled & forged Al, hard anodized, square, cable keeper	Exkursion, 1994	66	84	51	92	393