Old Ritchey Clipless MTB pedals. Have no clue about them. Any way to give them a service and test them if they work? I don't have MTB shoes but I'm thinking of
Ritchey WCS XC Mountain Pedal - black | BIKE24
Ritchey Logic Pro Clipless Pedals Black SPD Shimano Compatible | eBay
RITCHEY Replacements Cleats WCS | Pro V4 Micro for Road Pedale, 17,50 €