Mad Rock Safeguard Belay Device

https://www.amazon.com/Mad-Rock-Safeguard-Belay-Device/dp/B07NZ2BWYQ

• $110
• 8.1mm to 11mm

Mad Rock Lifeguard

• $90
• 8.9mm to 11mm

Petzl Grigri Belay Device Turquoise

https://www.amazon.com/dp/B00Q78WFKC

• $121

Petzl GRIGRI Belay Device

https://www.amazon.com/PETZL-Petzl-Grigri-Belay-Device/dp/B07MJ89NHW https://www.amazon.com/PETZL-PET_10076-PET_10076-BLUE-Grigri-Assurer/dp/B07MP53YHV

• $72 (seen it as low as $70)
• 8.5-11mm

Petzl GRIGRI + Belay Device with Cam-Assisted Blocking and Anti-Panic Handle

https://www.amazon.com/dp/B01M3TY6ZO

• $140 seen as low as $80
• 8.5-11mm

PETZL Pro Rig Descender New 2018

https://www.amazon.com/PETZL-Pro-Descender-2018-Yellow/dp/B0797HSW59

• $140 (as low as 122)
• 10-11.5mm
• max 200kg=400lbs
• https://www.petzl.com/US/en/Professional/Descenders/RIG

Petzl I'd Rope Descender 10-11.5mm Small NFPA ANSI

https://www.amazon.com/Petzl-Rope-Descender-10-11-5mm-Small/dp/B07M6NQ1K7

• $330 (look very similar to above, why is this version so much? the above is for Rig)
• 10-11.5mm
• max 250kg=500lbs
• https://www.youtube.com/watch?v=PArm_hD0CvY
• https://www.petzl.com/US/en/Professional/Descenders/I-D-S

PETZL Unisex_Adult D020AA00 I'd S Descender, Solid, Einheitsgröße

https://www.amazon.com/PETZL-Descender-Belay-Device-Yellow/dp/B07NCMGK45

• $166
• 10-11.5mm
• max 250kg=500lbs
• UK imports???
• https://www.petzl.com/US/en/Professional/Descenders/I-D-S

Petzl I'D L Rope Descender (Large)

• Rope compatibility: 12.5 to 13 mm diameter
• https://www.petzl.com/US/en/Professional/Descenders/I-D-L
• Descending a heavy load up to 280 kg ~617 lb

KONG Indy Evo

https://www.amazon.com/KONG-Indy-Evo-Descender-Nfpa/dp/B00HUGA2CI

https://www.amazon.com/Petzl-PETZL-Stop-Descender/dp/B07RNQ544D

https://www.amazon.com/dp/B06XDB5147