1️⃣🔄1️⃣

#one for one #swap #1 for 1 #quid pro quo

🎁↔️🎁or🪙↔️🪙

#equal exchange #fair trade #quid pro quo #tit for tat #same amount #one for one

☝️4️⃣☝️

#one for one #tally #i for one #point by point #single instance