If it's a lambda/4 antenna then it may match. Only from picture we cannot identify it.
But the question is if it is better than stock antennas. I doubt. Stock antenna is a bit longer than lambda/2 with stub for impedance matching. Hard to say if this is well done or not. I hope Yuneec has better measurement equipment compared to our eyes.
Such rubber antennas usually are the same wire antennas lambda/4 or lambda/2 with stub matching for WiFi band.
SR24 has 2405MHz to 2475MHz. Middle is 2440MHz and lambda/4 is the around 30,75mm.
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