hi bluecheese, of course fibre glass is 100x solid compared to plastic EM chair. you can't even lift the chair with 1 hand if it was made from fibre glass There's a shop at IMM sellin fibre glass EM Chair at $300+, Plastic EM chair you can have it at $110 (lush-lush) Total weight of my 4 chairs is about 18KG. Here's the supplier from taobao -> Eames DSW Chair and I use 65Diagou as my local shipping agent - found the shipping is quite X, not worth it! if you're getting plastic EM chair better to purchase it from qoo10, cheaper!