For its newsletter subscribers only, EverydaySource offers this Camera Lens Filter Step Up Adapter Ring 2-Pack bundled with this Anti-Slip Neck Strap for $18.99. Coupon code "S1018YAKN" cuts them to $5.99. With $2.99 for shipping, that's $9 below the lowest total price we could find for these items when purchased separately elsewhere. The 52mm to 55mm and 52mm to 58mm adapters allow you to use larger size filters on lenses with a smaller diameter thread. The adjustable camera strap is 3.5 feet long and made from soft neoprene with a layer of anti-slip rubber inside. Coupon expires after 1,000 uses.