Designed to hold current denominations of Singapore coins, Third series. Measurements based on data from: https://www.mas.gov.sg/currency/Singapores-Circulation-Currency-Coins Designed in collaboration with SG Enable (https://www.sgenable.sg) on behalf of Engineering Good (http://engineeringgood.org) for a CPH (https://www.cph.sg) beneficiary troubled with frustration with the handling of loose change. To see the actual 3D printed coin holder, please visit Tech Able (https://techable.enablingvillage.sg/aboutus). Press-fit coins into slots, design inspired by Wallet sized Coin Holder by Jackofalltrades https://3dprint.com/113686/3d-printed-coin-holder/