4.5MM thickness is more durable,the size of 33.5×11.8 inch will fit your desktop perfectly and provide perfect movement space . Applies to all types of keyboards and mice , providing plenty of room for professional gaming or office work . Support 10W charge for Samsung Galaxy Note 9/8/7/5+, Galaxy S9/S8 Plus S7/ S7 Edge / S6 edge. 5W standard charge for Apple i Phone XS/ XS MAX/ XR/ X/8/8 Plus and all other Qi enabled devices. (NOTE: 10W need QC2.0 power adapter)