So I thought a few useful tips might be appropriate. They typically have depth markings on their sides and a D-shaped handle. The cylinder is pushed into the soil and removed, usually taking a plug of soil with it. The bulb is placed in the hole and the plug is replaced.
Many gardeners prefer a trowel to the hand-held bulb planter.
However, bulb planters are useful in tight spots, provided the soil is loose. I used on once, and broke it after five minutes. I've been a trowel man ever since. Always look for the largest bulbs of each type. They should be solid, not squishy.