Here's what other sites are saying:
The Foot Pro Foot Loop from Petzl attaches to their Ascension rope clamp, for rope ascents. Underfoot strap is abrasion-resistant and is slightly rigid to make it easier to step into.
Petzl Footpro Adjustable Foot Loop FEATURES of the Footpro Adjustable Foot Loop by Petzl Attaches to the ASCENSION rope clamp for rope ascents Underfoot strap is abrasion-resistant and is slightly rigid to make it easier to step into Length easily adjusted with the DoubleBack buckle SPECIFICATIONS: Comes with SPEEDY P14 maillon with quick gate Weight: 135 g ALL CLIMBING SALES ARE FINAL.
Black Diamond Dynex Daisy Chain
$22 - $35
Metolius Easy Aider
$30 - $32
BlueWater Ropes Titan Daisy Chain
Petzl Gradistep Etrier
$50 - $51
Grivel Daisy Chain
$52 - $53
Petzl Evolv Adjust
Sterling Rope Daisy Chains