Obviously English- as - a- second - language folks. Dress forms for $1.00 seems a little weird as do the prices for muslins. With the cutting and marking tools it appears they are trying for the manufacturing market. I wonder if they are a front for an overseas outfit, making bucks with outlandish shipping charges? If you Google Map their addy there's a location but cannot tell much from that. They are not listed as a business at that location.
I see there is an sil thread co at a different address in NYC with www.threadus.com but all I see on their site are thread color charts and the first page of a catalog.