These are just jumpers with alligator clips, so how could you ruin such a simple product? The small plastic covers over the clips are made of a type of plastic so smooth that it is impossible to squeeze the alligator clips to open them unless the covers are removed. I mean you are trying to squeeze the clips together and they just slide into the sleeve instead of opening. They're bone dry, but they feel like they're soaked in slime—they're incredibly slippery (whatever the material, it can be used as a newfangled lube). I found them completely useless.
VIVREAL 4 In 1 Stud Finder Wall Scanner With LCD Display - Center Finding Beam Finder And Sound Warning For Wood, AC Wire, And Metal Studs (Black/Silver)
24 Review
Qingping Qingping Bluetooth Smart Alarm Clock Green
22 Review
Xiaomi iHealth Meter Thermometer White
24 Review
Cable tester BENETECH GM60
15 Review
📏 Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review
TV bracket Kromax DIX-18 black
52 Review
➕ Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review