This is a neutral bullish strategy and going to be the upside bounce in order to collect the premium.
Sell ATM Put and Buy OTM Put = Sell Put + Buy Put
Sell 50 Delta & Buy 25 Delta
Use 45 days To Expiration. The characteristic is 50% higher profit with the negative of R&R.
To collect at least 33% of the vertical width !!! Another advance similar strategy is short strangle in which sell 30 delta Call & sell 15 delta Put.