Acrylic is produced in two basic versions, cast and extruded. Cast acrylic is produced by mixing the acrylic liquid ingredients in molds. For acrylic plates between two glass plates. A chemical process in the mold create a homogeneous material with equivalent properties in all directions. In contrast, extruded acrylic is produced by continuously pushing acrylic mass though a form, while the chemical process takes place. Extruded acrylic is therefore heterogeneous, with properties which vary depending on the direction.You are buying CLEAR Acrylic Plexiglass 1/8″ plastic sheet circle **you pick diameter** All of our dimensions are NOMINAL. There is a tolerance of (+/-)1/8″ or 0.118″ We also can do custom cuts, a minimum of 10 pieces. We cannot cut anything under 6″. Please message us before placing your order to get a quote. We offer other materials – please see store. We also build vacuum forming machines, roller die cutters, drying ovens, and CNC routers. We sell Infrared Heaters, Vacuum Pumps, and Vacuum Systems. Please message us for any further questions. Shipping•Your order will be shipped within 1-3 business days once we receive your payment. If you pay by e-check, we will ship your order once your payment is cleared. We do not ship on weekend or public holidays •A shipping notification with a tracking number will be emailed to you once your order has been shipped. Please note there is not always a tracking number for international orders. We are not responsible for the time frame of delivery for the shipment. Once we ship your package, the carrier is responsible for the timing of the delivery. •We are not responsible for any customs duty incurred at foreign customs. Or any hold ups with customs. Please note that international orders can hold in customs for ups to 45 days, no questions asked. Payment & Return•Payment is accepted via PayPal, Custom orders can be place through us, please message us about custom cuts. If a message is not sent to us before the purchase, there’s no guarantee the piece will be cut. •Items can be returned for exchange or refund within 30 days from the date you receive your merchandise. We are not responsible for any purchase after a 30-day period. Also shipping paid for the product is not refunded for returns that include your own reasoning for return, such as it does not work for your application or no longer need it. There is also a 20% restocking fee. •Return shipping is the responsibility of buyer.•If you have a problem with your order please contact us first. We are always willing to work things out.