MTECH USA MT-A1019 Series Spring Assist Folding Knife, Straight Edge Blade, 4.5-Inch Closed https://www.amazon.com/dp/B078MYD3SB/ref=cm_sw_r_cp_api_glt_i_B4YY2A5QQT06V830CYN3?psc=1

Here is the same knife on Amazon for $15 if the universe decides not to give it back.