The city of Mercer Island has partnered with recycling company Ridwell to provide free doorstep Styrofoam collection on either Feb. 12 or Feb. 26.

All residents are eligible, including those in apartments and condominium buildings, to participate in this “beyond-the-bin” event — featuring materials not usually accepted for regular recycling.

Residents can fill one 55-gallon bag of foam materials, such as packing peanuts, foam shipping blocks and more.

Space is limited, so residents are asked to register online in advance at http://get.ridwell.com/mercerislandstyro. Ridwell membership is not required.