These are aftermarket parts to replace Playmobil Part 30 20 073 + 30 20 074 for Playmobil sets 4011 4010 4018 & others (Trains not included) These replacement connecting rods are compatible with the additional gold link arms and pins found on some locomotives. The pins click into place very securely and allow free movement with my aftermarket connecting rod as well as the original playmobil version. For pin removal, its best to use two pry tools (such as those found in iFixit tool sets) under the connecting rod, prying either side of the pin. Parts are printed in ASA  (acrylonitrile styrerne acrylate) which is an all purpose thermoplastic with excellent weather, UV and heat resistance up to 95C. Parts are intended for indoor use but ASA filament is designed to hold up well in outdoor conditions. However it is not recommended to leave parts exposed in freezing conditions during winter months. Parts are all printed to order on a Bambu Lab Carbon X1 3D printer. All UK sales will be sent via Royal Mail 2nd Class. This cost is included in the price up to 100g. Multiple orders which bring the weight over 100g will incur an extra charge. Express delivery is available in the UK. This cost covers Large Letters up to 250g. Multiple orders which bring the weight over 250g will incur an extra charge. International buyers welcome.  Please note for Royal Mail International Tracked Postage the listed price only covers large letters up to 100g. Please contact me for a shipping quote if you wish to purchase additional items. Please note, I do not set the prices, Royal Mail does. It is the buyers responsibility to pay any additional charges such as customs and import tax.