36 Pcs Adjustable Capacitor Trimmer Capacitor Plastic 6mm Kit Assorted 9 Values 5PF 10PF 20PF 30PF 40PF 50PF 60PF 70PF 120PF

Work as advertised but the caps are not marked with their value. I can refer to the advertising for an indication; but there are two groups that share the same brown color

Here are my observations:I measured all on my multimeter which can measure down to 1pF:Eleven of these appeared to show zero capacitance no matter how they were adjusted. I have kept these anyway because perhaps they are actually in the femto range, and if so, I could possibly use them for ultrafine tuning.The highest C I measured for any was over 110 pF.The adjustment requires a #2 plane screwdriver. Small 20-30 degree rotations of the screw can cause large changes in C. It isn't easy to dial in a C; trial and error of back and forth turning may be necessary. The good thing is there may be enough friction to hold a setting, once adjusted, so these might be suitable for a production project beyond the breadboard. However, I am not sure how well the plastic housing will hold up over time. Also, these are probably not meant for frequent adjustment again and again, but really just for tuning a final project setting.

you get a bunch of different colors ... none are marked with a value , that is up to you to figure out...

As I said in the title, not of these worked. They are duds. I would not recommend these.