https://tools.woot.com/offers/zone-...-guide-21-2pk-10?ref=w_cnt_lnd_cat_alldeals_3 2-Pack Zone Tech 21" Heavy Duty Rubber Parking Guide (TS0006) on sale for $19.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is $6 per order.