Based on this product's specifications, here are some alternatives and similar models
Masonry trowel AWTools AW30253, flat-blade hand trowel, weight 230 g
Summary description:
Hand masonry trowel AWTools AW30253 with a flat blade designed for spreading and shaping mortar and cement. Compact hand tool weighing 230 g, suitable for general bricklaying, patching and small repair tasks. Provides control for precise application of mortar during masonry, tiling preparation and point repairs.