Tray for small solar panels

This tray can hold up to 8 solar modules (70mm × 107mm × 2,5mm) and 16 2mm to 4mm plug adapters. The modules I use are from lexsolar.com, I bought them at https://www.leybold-shop.de/chemie/schuelerversuche-sek-i-sek-ii/projekte/brennstoffzelle/der-elektrolyseur/betreiben-des-elektrolyseurs-digital/457330.html