I ordered several 15 series extrusions as well as other components like gussets, various brackets, tnuts and screws. I messed up one of the items on my order and called the following morning. Robert was very understanding and substituted the correct part for what I ordered by mistake, no questions asked and even did it without asking for more $$ even though the parts added up to a bit more than what I picked. And although the order was delayed due to a 15 series shortage within the shop, it was communicated to me that the material would be in later that day and would then ship the following day. Packaging was more than adequate and everything was received in excellent shape. I’ll no doubt use TNUTZ again. Great value and excellent service.