I don't know to much about it... Testing with collection very welcome..Please check photos as they're part of description. Also please check google/youtube for review/tests.. I've tried to show all details (damages, imperfections, and missing parts) on photos so please look carefully. I'll be more than happy to send pictures in higher resolution on request. Some items can be dusty - I wanted to show real condition I didn't clean them (recently they spend some time in the bag waiting for new owner :). (except white background, metal clips and ruler :). If something is not clear do not hesitate to ask. Each product will be securely packed and post ASAP... So P&P include packaging I always try to use. , time to pack it up, time (and sometimes bus ticket) to get to and. In post office or parcel shop... I offer FREE COLLECTION - London N1 Islington - msg me to set day/time and bring a bag for your item. This item is in the category "Business, Office & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Microscopes". The seller is "snylvia" and is located in this country: GB. This item can be shipped to United Kingdom.