Anyone tried these for caving? https://www.heightec.com/product/descenders/prism-rope-access-descender/ Are bobbins made out of steel? Are they user-replaceable?

Hi, Sometimes when I do rigging there are situation where I feel like using a skyhook - e.g. have to stay sideways at a bigger angle from the natural drop or flat wall with no natural steps to get into a stable position. Can you recommend something? This one looks good to me but based on what...

Hi, I recently graduated the caving course in Bulgaria and feel fairly confident using a Petzl Simple descender. However it has some limitations which you are all familiar with and descending fast or muddy ropes is no joy with this gear. Some background for what I need to deal with - short...