Check the listing for details. LOT of 5 Microscope Cross Hole Adapters BROKEN Knobs - Repairable Condition. Condition: For parts or not working. Listed at 79.87 USD. LOT of 5 Microscope Cross Hole Adapters BROKEN Knobs - Repairable Condition Overall Dimensions: Height: 2.75 inch Width: 6.50 inch Length: 3.00 inchDiameters: Small: 1.25 inch Large: 1.50 inchMany of the plastic knobs on these are broken. But the threads seem to be good. With a bit of care, they can still be used, be aware the sharp stubbies could be hazardous to your fingers. They could use a touch up or repainting a few of them have minor surface oxidation and wear marks. They have been sitting for a while and are very dusty. They are used, and do show some wear. Replace the thumb screws and they are could be good to go. You can cannibalize knobs from a couple of the units to make a few of these good to go.These came to us from a major Aerospace OEM or from government excess. Pictures best represent product being sold. Please take a look at all of the provided photos before placing your bid to thoroughly inspect the lot contents and condition. Item Condition: FOR PARTS / Needs Repair Return Policy: We are offering the buyer a 30 Day right of return for testing and inspection. Buyer will be responsible for the cost of return shipping. Listed for by JL - Located at: WB 1046 (2) Shipping weight is 5.00lbs, 0.00oz, shipped from our warehouse in Tennessee. (zip 37370) Default Shipping Service: USPS Parcel Select Tennessee residents will be charged our local 9.75% sales tax. California residents will be charged our local 10.25% sales tax. (We have offices in both Tennessee and California and are required to charge tax to any shipment sent anywhere in either state.) B#: