Searching for a great deal on office and school supplies? We carry everything you need from hundreds of brands including these sparco top-loading polypropylene sheet protectors. Office quarters has been a leader in the office supplies industry for 15 years and is dedicated to outstanding customer service for every single customer. Most items shipped via UPS for quick delivery. Items with the No UPS symbol are shipped as a dock or door delivery and special delivery services should be requested when the initial order is placed.